Milking-machine.



M. 1'. MunPHY a HQVH. BnANnEAu.' mugma MACHINE.

APPLICATIO FILED IAR. 7| |916.

Patented Mar.

Jar;

yan-Jl Ame/f .Innen/Y .Y eend n fr y f n n Away:

M.1.M unPHY & H. H. BRANDEAU.

MILKING MACHINE.

APPucmon msu lum. 1. |916.

Patented Mar. 6, 1917" 2 SHEETS-SHEET 2 Inl/Masse;

Meer ,v

UNITED STATES iirnntr OFFICE.

MARK J. MURPHY AND HARRY H. BBANDEAU, OF ST. PAUL, MINNESOTA.

unirme-MACHINE.

Specification Letters Patent.

To aU iii/wm 'it may concern.'

lle it known that we, Mani: J. MURPHY,

citizen of the Dominion of Canada, and

llamar ll. lhmniiuau, citizen-of the United States, residents of St.laul, county of Ramsey, lmtate of Minnesota, have invented certain newand useful Improvements in Milking-Machines, of which' the following' isa specification. Y

'lhe object of our invention is to rovide a milking machine havingiinproverfineans for controlling the discharge of the milk from thereceivers iito thc milk receptacle, said controlling means being mountedin such a way that it is readily'removable for cleansing purposes or forrepairs.

A further object is to provide milk receivers and teat cups of suchconstruction that all parts thereof iexposed to contact with the milkare readily accessible, have no spaces in which foreign matter may lodgeand taint the milk, and can be easilyr and quickly scalded wheneverdesired.

A Afurther object 1s to provide an improved form of pump composed of butfew parts and easily iiiovab leilfr'o-in place to place on the operatingbar or rod.

The invention consists" generally in various .coiistructionsandeomblnations, all as hereinafter described and `particularly pointed`out in the claims.

In the accompanying drawings forming part of thisspecifieatioii,

l `igure 1 is a plan view ofa milking miichine embodying our invention,

Fig. 2 is -adetail sectional View .througha portion of the milkreceptacle. and one of the 4milk receivers.

Fig. 3 is a detail view, partiallyin section, of' the head in whichtheteat cups are mounted,

Fig'. 4. is `a longitudinal sectional view of a single cylinder,double-acting pump which cylinder,

seated.

we prefer to use with our milking machine, Fig. 5 is a sectional view,illustrating the preferred manner of supporting the pump Fig. (l is adetail view. of one portion of the. head in which the teat cups aremounted.

In tlie d'ra\ ving, 2 represents a milk .receptacle of suitable size andshape, having an open top in which a flanged disk 3 is The receptacle ispreferably provided with a yertieal partition 2f to allow the user tokeep the milk of the twoeows separate during the niilkiiigoperation.VThe Aceptacle beneath.

"and 21 of the 'section 15.

preferably of metal and have the usual flexi-- disk is provided withholes, preferably four in number, to receive the lower threaded end of atubular milk receiver -l having a flange ."i that is seated on the topof the disk 3 and a uut ('i for engaging the threaded end of thereceiver and locking it securely in the hole iii the disk. 'lhe lowerendv of the receiver is iiiteriorly threaded to receive theexteriorlythreaded end of a tubular extension 7 of the receiver that is providedwith a series of notches 8 and forms a seat for a valve disk 9 that isfitted loosely between tlie upper end of the extension 7 and a rib 10that is formed on the inner surface of the receiver.' This disk issufficiently loose to allow the milk to flow between the edge of thedisk and the wall of the receiver and `en ter the recesses S and passdown through the extension 7 into the milk re- The receiver can bereadily removed from the disk 3 -by loosen- Patented Mai'. 6, 1917.

ing the nut and whenever desired, the exi l tension 7 may be withdrawnfrom its threaded socket in `the receiver to allow access to the valvedisk for the purpose of cleansing the teat vcups are mounted. This headcon-` sistspreferably ofrsections 15 and 16 having opposing inclinedfaces. seated against.

one' another and secured together by a bolt 17. ril`he section-15 hasnipples 1S and 18 for c ot'i'nectionI of the tubes 12 thereto and teatcups 19 and 19, four in number, have I flexible couplings 20 with thenipples 21 The cups are ble ca ps22 for receivingthe teats.

As shown in Fig. 6, the nipple 1S is colinected with the nipples 21whilethe nipple 18' is connected with the 4nipples 21, a

passage 18 being provided between the nipples in the head of the samepair; that is,

the suction through the 'nipple 1H will be transmitted to both thenipples 21 and through the nipple 18 to both the. nipples 21.\ As 'hereshown, there are four of the; milk 'receivers 'mounted on the supportingdisk 3 and two groups of teat cups, 4 in. each group, each divided intotivo pairs, two of the tent cups of one group being eonneeted withonereceiver andthe other .two tea't cups of the same group beingeonnected4with the adjacent receiver. With this provision, two cows can beinilked at the saine time and the milk kept separate in the receptacle2. 'lhetop of each receiver has a ieiiiovable cap 23 provided with anipple 24 for connection with the air suction tlibes .25 and 26. Thesetubes are bi'anched at one end and coiiiiected with the nipples of thediagonally opposite milk receivers so that suction will be applied tothese receivers simultaneously and tlic connection of these receiverswith the teat cups is such that suction will be applied to one pair ofthe cu'ps of oneI group'and another pair of the other group of cupssimultaneously. In other ivords, the movement vof the pump plunger inone direction will create a suction in two of the. cil-ps of each groupand release the suction in the other two cups of tlie same group.'1`licrefore, while the pump pluiigci' is closing the valveat one end ofthe cylinder and establishing a suction ili thc teat cups connected withthat end of tliecylinder` the air is being forced out of the oppositeend of the cylinder and, tlie suction iii the cups connected with thatend released or destroyed to allow the valve in the milk receiversconnectedwith that ciid to open and the milk low down into thereceptacle beneath. lVlie-n the members of the teat cup heads a'reseparated. the passages 1S' and Athe nipples will all be exposed andcan'be easily scalded and all dried milk and foreign. n iatt'er wliiclimay have lodged in the crevices or joints of the cups and passages canbe `asily 'and quickly removed. 'l`lis feature of accessibility of theparts of the milking iiiacliine'and tlie ease 'with wliicli all suchparts can be exposed and kept clcaii` we regard as an important featurein the construction of our device.

'l`lieotlier ends of the siiclioii tubes 25 andflll are connected tonipples :2T of the single cylinder 2S of a double-acting pump. '1`liispump has a single pisloii '.29 provided witli oppositcly arrangedwashers 30 and 3l. .It single rod 32 is connected to the piston and isprovided with an angular extension 33 adapted to enter a slot 34 in areciprmating bacilli operated b v=a suitable source of power and movablein guides llcarricd b v a suitable support 3T, Brackets 38 are mountedon said guides and have substantially U-sliaped seats wherein saidcylinder is itted. Ports 39 and 39 are provided. near tlie opposite endsof the cylinder and valve disks -lll are mounted in suitable cups 41 liaving caps 42 which permit a limited movement of the disks to open orclose the ports. 2l!) and 39% Exhaust passa es 43 are provided iii thewalls "of saii c 'iips through which tlie air is allowed tovesi'iapewhen ii valve is'.o|wned. y

y "llie olwratioii of the device is as follows:

. 'llie pump, having been 'placed on the brackets, witii the piston rodin engagement with the normally reciprocating bar 35, operated by asuitable-source` of power (not shown), thev piston head will bereciprocated in the cylinde' and through its movement in one directionwill close the valve in one end of the cylinder and lcreate a suction inthe milk receivers connected with that end of the cylinder. 'lliissuction will close'the valve in the bottom of the milk receiver andproduce. a milking action of the cups in the well-kiiowii way. l

.'\ssuiiiiiig tlia'tftlie movement of the piston has been from left toright in Fig. 4, the port 39 will beclosed and a suction created in thetube 26. The air in the right liaiid end of the cylinder will be forcedout through the port 39 and the exhaust ports in tlie valve. beneath,and the suction in the tube 25 will be destroyed to release the gravityvalves in the receivers connected with the tube 25 to allow them to dropand permit the escape of the milk that may have collected in thereceivers. Upon the return stroke of the plunger the operation describedwill he repeated, with respect to the other two milk receivers connectedwith the tube 26.

.lVe claim as our invention:

1. A milking machine comprising a .milk receptacle having separatecon'ipartments for the milk` milk receivers'inounted on said receptaclefor each compartment, teat cups arranged in groups, each milk receiverhaving a tube for connection with a pair of cups` the receiverscommunicating with the same compartment of the milk vreceptacle beingconnected with the pairs of cups of the same group. and a pump havingsiiction tubes for-connection with pairs of milk receivers.

2. lii a milking.macliinc4 a milk riceiver having mea-iis lfor mountingit upon a milk receptacle and provided with an open lower end for thedischarge of the milk and also having a stop on its nnerwalls and a.limiting valve provided .within the open lower end of' said receiver andencircled by the walls thereof and positioned to engage said stop andclose said receiver temporarily during the entrance of the milk therein.

3. A milking machine comprisinga milk receptacle having separatecompartments for4 the milk, niilk .receivers mounted onsaid receptaclefor each compartment, teat cups arranged in groups. each milk receiverhaving a tube for connection with a pair of cups, the receiverscommunicating with the Sallie compartment' of the milk receptacle beingconnected with the pairs of4 cups of the sinne group, and a pump havingsiiction tubes for connection with pairs of milk receivers] one.receiver of each pair communicating with one compartmentof said havingmeans for mounting receptacle and the other receiver of the same pairwith the other compartment ofy said receptacle.

4. In a milking machine, a milk receiver it on a milk receptacle andprovided with a milk discharge opening and a valve seat, an extensionl'oil said iriilkreceiver fitting therein and having notches in itsupper end, a valve disk fitting loosely between said valvel seat a'iidthe end of siiid extension,

said valve at the limit of its upward movenient closing said milkdischiigge opening and when released resting iipoi'rl, said extensionand permitting the discharge of milk through .said notches.

5. A milking machine coinpi'isingii milk receptacle and a plurality ofmilk receivers niounted thereon, teat cups having means for-i-.oniiection with said receivers, Suction tubes connected Vwith saidreceivers, a single cylinder pi-inip having itslends connected with saidsuction tubes and provided with a double disk piston with reverselyarranged paekings thereon, the movement of 4said piston forcing the airthrough one )air of milk receivers suction tube .into one andsimultaneously .ex iaiistiiig the air from the other suction tube andthe other piiir'of milk. receivers.

(i. ln a milking machine, a milk receiver having means for mounting iton a milk rje ceptacle and provided with a milk discharge opening .'inits lower end and a valve seat on the walls of said receiver above saidopening, an extension for said milk receiver fitting the open lower endthereof and depending into the milk receptacle, theupper end of saidextension rbeing spaced from saine,

said valve seat, a valve disk fitting between said extension and saidseat and having freedom of vertical movement for closing or openingithedischarge opening of said receiver, and said extension having ports ad'jacent saidI valve for the discharge of the milk when said valveis'released from its seat.

7. In a milking machine, a suitable receptacle,"a cover therefor, Aaplurality o f milk receivers mounted in an upri ht position on saidcover and projecting a ve the dependently of the other milk-1 receiversand detachable separately from said cover, each rei-viver having a milkdischarge opening at its lower end, al valve and seat; therefor in eachreceiver for controlling the dis- 'charge of milk from such receiver,and a pump and'teat cups connected with said recei vers. I

8. In a m'ilking machine, a milk rece tiiele and cover therefor, a.plurality 0f mik receivers `having 'their lower endstap'pedi intosaidcover and provided with lock. nuts for securing said lower ends insaid cover,

other, teat cups each niilk receiver being mounted in-4 y forcing theair 'one of said suction tubes toopen the valves said receivers beingreadily removable from said cover and having milk discharge passagesleadingv to said receptacle, and valves therefor, and a pump and teatcups connected with said receivers.

E). In a iiiilkiii r machine, ya teat cup head divided into independentsections having opposing recesses therein forniing passages when thesections are joined, and means for securing them togethei-, teat cupsmounted in pairs munir-ating with one passage andthe other pair with theother passage, and

tion tubes.

l0.V In a milking machine, a teat cup head divided diagonally intoindependent sections, said sections having opposing recesses therein,forming passages when the sections are joined, and a boltpassingthroiigh said sections and securing them one upon the mounted inpairs on said sections, one pair communicating with one passage and theother pair with the other passage, and said head having means forconnection withsuction tubes.

11. A milking machine comprising a milk receptacle and agroupof fourmilk receivers mounted thereon, teat cups having .means for connectionwith saidreceivers,a

pump cylinder, suction tubes connecting the ends of said cylinder withpairs of milk receivers respectively, and a 'piston operating in saidcylinder between said suction tubes, the movement of said piston in onedirection forcing the air in one end of the cylinder outtli'roiigh asuction tube into one pair of milk reccivers'iand the movement of thepiston in the other direction creating a suction in'said pair of milkreceivers and forcing the air inthe other end of the cylinder throughthe .other suction tube into the other pair of milk receivers.

12. A milking'` machine comprising a milk ireceptacle and a plurality ofmilk receivers mounted thereon said receivers each having a valve seatand a floating'valve mounted -to close the outlet of said receiver whensuction is applied thereto and open said outlet when the suction iswithdrawn, a pump cylinder, suction tubes connecting the ends of saidcylinder with the pairs of milk receivers respectively, a pistonoperatingin said cylinder, its movement in one direction out of thecylinder through inone pair of milk receivers and simultaneously closethe valves and 'suck the air through said tube from the other pair ofmilk receivers.

13. A milking machine comprising milk receptacle, two pairs of milkreceivers mounted thereon, a single cylinder pump,

suction tubes .leading from the ends of said cylinder and connectedrespectively to 'pairs on said sections, one pair com-v said head havingmeans for connection with the sucof milk lreceivers alternatelyarranged, groups of teat cups each composed of two pairs, suction tubesleading from each pair of teat cups to one of said milk receivers,- thetubes of the same group of cups being connected to adjoining receivers.

14. A milking machine comprising al milk receptacle and cover therefor,a milk receiver having itsopen lower end tapped into Said cover androvided on its inner Walls with an inwardi;Y pro'ecting rib forming avalve seat, a valve isk within the open lower end of said receiverhaving freedom of movement therein and seated against said rib when saidreceiver is being filled, and le

